MEDIUM
10th ICSE
IMPORTANT
Earn 100

State necessary conditions to obtain pure spectrum.

Important Questions on Spectrum and Colours

MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 13
Name the instrument used to obtain pure spectrum. Describe the working of its different parts.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 14
A beam consists of blue and red colour rays. When it falls on one face prism red ray suffers total reflection from the other face of the prism. Will blue ray also suffer total reflection from this face of the prism? Explain. 
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 15
What causes the rainbow in the sky?
HARD
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 18

Question Image

Complete the following ray diagram to show the formation of impure spectrum.

MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 1
What do you mean by electromagnetic spectrum?
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 2
Name any four electromagnetic waves and put them in increasing order of their wavelength.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 3
Arrange the following in the increasing order of their frequencies: Cosmic rays, microwaves, infrared waves and gamma rays.
MEDIUM
10th ICSE
IMPORTANT
S CHAND'S ICSE PHYSICS BOOK 2>Chapter 6 - Spectrum and Colours>QUESTIONS>Q 4
Name electromagnetic wave whose wavelength is 5000 Ao